The Book of Mulling or less commonly, Book of Moling, is an Irish pocket Gospel Book from the late 8th or early 9th century. The text collection includes the four Gospels, a liturgical service which includes the "Apostles' Creed", and in the colophon, a supposed plan of St. Moling's monastery enclosed by two concentric circles.

Evangelist portraits are a specific type of miniature included in ancient and mediaeval illuminated manuscript Gospel Books, and later in Bibles and other books, as well as other media. Each Gospel of the Four Evangelists, the books of Matthew, Mark, Luke, and John, may be prefaced by a portrait of the Evangelist, usually occupying a full page. Their symbols may be shown with them, or separately. Often they are the only figurative illumination in the manuscript. They are a common feature in larger Gospel Books from the earliest examples in the 6th century until the decline of that format for illustrated books in the High Middle Ages, by which time their conventions were being used for portraits of other authors.